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Assets Held for Sale (Details) - USD ($)
1 Months Ended 12 Months Ended
Apr. 30, 2019
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Loss on sale of business   $ 5,405,000 $ 0 $ 0
SAP | Discontinued Operations, Held-for-sale or Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Loss on sale of business   $ 500,000    
Scenario, Forecast | Subsequent Event | SAP | Discontinued Operations, Held-for-sale or Disposed of by Sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Sales price of SAP $ 660,000      
Proceeds from sale of SAP $ 240,000      
Note receivable term 2 years      
Note receivable from sale of SAP $ 420,000